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7800 GTX 512 Memory/VREG Block - Page 3

Poll Results: Should I Add A VREG/MOFSET Cooler?

 
  • 73% (19)
    Yes!
  • 7% (2)
    No!
  • 19% (5)
    You're Nutters!
26 Total Votes  
post #21 of 24
Yes, I would definitely cool the VREG/MOSFETS thingies, the reason they don't get too hot during normal use is becuase the stock heatsink blows air over them, removing that HSF and adding a water block means no airflow over that part of the card meaning that it could overheat very quickly.
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post #22 of 24
Quote:
Originally Posted by Sun
Here are some 3D shots of the design, I will now research the height of the barbs/nozzles on various water blocks, and slim out the block accordingly, if it shows that my block gets in the way. I want this to be as universal as possible. If anyone can help, I would really appreciate it. (I would want height from the bottom of the block to the lowest portion of the barbs.)
I have a version with the screw holes, but I am still figuring out their exact positions. Once again, I could use help.
I have a 7800 GTX in my rig - let me know how i can help - Im running just a maze4GPU - have ordered a nother shroud for my thermochill - and then Ill have a 2nd 120mm fan blowing on the VREG modules..
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post #23 of 24
If you want better cooling get rid of the anodized alluminum heatsinks. All of my mosfets on my motherboard have OCZ BGA ramsinks on them. And the PWM temps all went down over 20°c with a fan blowing over them. I resized some of them as well.

Oh and if you can make one go for it. It would be an awesome project. and the mosfets cool pretty easy so they shouldnt add too much heat to the loop.
    
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post #24 of 24
Quote:
Originally Posted by OJX
Don't see the need unless that part of the card gets extremly hot.
Well... They do get extremly hot. I heard about the voltage regulator one someones 7800 GT catching fire, no joke. The card was OCed pretty far though, but I hear that they Vregs only become dangerously hot after the voltage for the card has been signifigantly increased.
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